pam_shishi: Logging and options.

[Mats Erik Andersson]

The following patch suggestion upgrades the PAM module
"pam_shishi.so" with initial logging support, as well
as the basics for option handling. Invocation is now
extended to allow

    auth sufficient pam_shishi.so debug realm=EX.ORG

although the present debugging output is restricted
to telling

    Acting on address@hidden'.

The code is at present adapted to Linux PAM and to OpenPAM.
The intention, as a primary goal, is to get a module that
works with "login" and "ssh" in all capacities that are
possible with "pam_krb5.so". The present changes are only
a humble beginning.

Best regards,
  Mats Erik Andersson

0001-pam_shishi-Basic-logging-and-first-options.patch
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